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SPEEDOMETER CONFIgURaTION: WhEEl SIzE INPUT
Once all the units have been selected (see page 12), the computer, if it is installed on the handlebar
mounting bracket, will ask for the bike wheel size Whl. This will allow the computer to accurately
estimate the Speed and Distance while cycling. Once entered, the computer will NOT ask again for this
information.
Note: To correct or modify the bike wheel size at any time, press the UPPER RIGHT and BOTTOM
button for two seconds when the computer is in Speedometer Mode (See page 22).
The default wheel factor '2124' will initially appear with the digit furthest to the right blinking. This is
the correct setting for a 26.6" (700 x 25C) tire. If this is your wheel size, press the UPPER LEFT button
four times to confirm each one of the four digits. If this is
not your wheel size, use the Wheel Diameter Size Chart
on the next page to find the correct wheel factor (c). In the
event your tire size is not included in this chart, multiply
your wheel diameter (d) in millimeters by 3.1416
to determine the correct wheel factor (c).
To enter the correct wheel factor into the computer, press
the UPPER RIGHT button until the correct digit appears.
Press the UPPER LEFT button to lock in the correct digit.
Repeat until all four correct digits are entered.
d is the diameter
of wheel
in millimeters
15